Just discovered this app tonight.. fantastic! With some additional tweaking I've managed to set it up so I can make and receive calls using the onboard speakers and microphone of my laptop. Here's how I did it in case anyone else wants to give it a try:
1. Download Remote Phone Call from the Market - I used the trial version to test this but will be getting the full one based on the results!
2. Install on your phone and laptop (Win 7 x64 in my case)
3. Connect using Bluetooth NOT wireless (in fact disable wireless connectivity in the Remote Phone Call app options on your phone)
4. Pair your phone (Galaxy Note 2 in my case) to your laptop over Bluetooth
5. Goto Control Panel, Devices and Printers.. you should see your phone here if you've paired it right
6. Right-Click it, click Properties, then the Services tab and tick them all. Click Apply
7. Windows will install the drivers it needs but will probably fail on Bluetooth Peripheral Device
Go here and follow the instructions - make sure you get the right version for your machine (32-bit driver / 64-bit driver).
There's also links for AMD CPU versions on the same page (scroll down to the bottom left)
8. Assuming you get the missing driver installed, start Remote Phone Call in Windows and click on the Bluetooth headset icon at the top (choose your laptop name from the list)
That should do it!
One request... if you could add a dialpad to the Windows app (for navigating IVR menus etc) that would make this even better!
Cheers